Abel g



(No Model.)

A. G. STILSON.

FLOOR TUBE.

No. 317,684. Patented May 12, 1885.

7 I ZLZ ATTORNEYS Nv PEYERS. Pbub-ljlhogrlphr, Willlingilm D C.

lhvrrnn Status PATENT OFFICE.

ABEL Gr. STILSON, OF COBLESKILL, NEW YORK.

FLOOR-TUBE.

SPECIFICATION forming part of Letters Patent No. 317,684., dated May 12,1885.

' Application filed May 10,1884. (No model.)

To all whom it may concern.-

Be it known that I, ABEL G. STILsON, of Gobleskill, in the county ofSchoharie and State of New York, have invented certain new and usefulImprovements in Floor-Tubes, of which the following is a specification.

This invention has reference to an improved safety Wall or floor tubefor stove-pipes that can be adjusted to any thickness of floors orpartitions through which a stove-pipe is to be passed; and the inventionconsists of-a safetytube that iscoinposed of two telescoping sections,each having an inwardly-projecting and perforated guard-ring and anexterior seat at one end, said sections being connected by adjustablestraps and loops to the thickness of the partition-wall or floor.

In the accompanying drawings, Figure 1 represents a vertical centralsection of my improved safety-tube for stove-pipes. Fig. 2 is ahorizontal section of the same on line 00 m, Fig. 1. Figs. 3 and 4 aredetail views of the fastening device of the safetytube.

Similar letters of reference indicate corresponding parts.

A in the drawings represents a stovepipe which is surrounded by asafety-tube, B, at the point where the stove-pipe passes through a fiooror partition-wall. The safety-tube B consists of two telescopingsections, 0 and O by which the length of the tube B can be adjusted tothe thickness of the floor or partition. Each section 0 and O isprovided at its outer edge with an exterior flange, e, that restsagainst the wall or floor, and with an inwardly-projecting guard-ring,f, the inner diameter of which corresponds to the size of thestove-pipe. The guard-rin gs f have perforations f f to admit thecirculation of the air in the annular space between the stove-pipe A andthe safetytube 13. The telescoping sections 0 and O are connected bystraps D D of sheet metal or wire, which are secured at one endrespectively to the upper or lower section, 0 or C of the tube B, andconnected at their inner overlapping ends by loops at d, of sheet-metalor wire, around which the inner ends of the straps D D are bent when thesections 0 0 have been adjusted to the thickness of the wall or floor,as shown in Figs. 1 and 3.

By keeping different sizes of safety-tubes corresponding to the sizes ofstove-pipes in stock they can be put up without difficulty, either bythe tinsinith or by any one putting up a stove.

Having thus described myinvention, I claim as new and desire to secureby Letters Patent A wall and floor tube for stove pipes, consistin g oftwo telescoping sections, 0 and 0 provided with exterior flanges, c,inwardlyprojecting guard-rings)", ha ing perforations f, andconnecting-straps D D and loops cl d, substantially as described.

In testimony that I claim the foregoing as my invention I have signed myname in presence of two subscribing witnesses.

ABEL G. STILSON. Witnesses:

A. G. GICINE, D. G. Dow.

